![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
| author | Junio C Hamano <gitster@pobox.com> | |
| Sun, 7 Mar 2010 22:53:40 +0000 (14:53 -0800) | ||
| committer | Junio C Hamano <gitster@pobox.com> | |
| Sun, 7 Mar 2010 22:53:40 +0000 (14:53 -0800) |
* tr/maint-cherry-pick-list:
cherry_pick_list: quit early if one side is empty
cherry_pick_list: quit early if one side is empty
| 1 | 2 | |||
|---|---|---|---|---|
| revision.c | patch | | diff1 | | diff2 | | blob | history |
diff --combined revision.c
index 34f9ab98d1872770ef4d54014c31ece6eb7c8c39,c2fad2fd7e7d83e3cd74faad34ba9427641bef50..c92ffc2a58bcda0744da44a31bce7d7112b1e510
--- 1/revision.c
--- 2/revision.c
+++ b/revision.c
#include "reflog-walk.h"
#include "patch-ids.h"
#include "decorate.h"
+#include "log-tree.h"
volatile show_early_output_fn_t show_early_output;
-static char *path_name(struct name_path *path, const char *name)
+char *path_name(const struct name_path *path, const char *name)
{
- struct name_path *p;
+ const struct name_path *p;
char *n, *m;
int nlen = strlen(name);
int len = nlen + 1;
static void add_pending_object_with_mode(struct rev_info *revs, struct object *obj, const char *name, unsigned mode)
{
if (revs->no_walk && (obj->flags & UNINTERESTING))
- die("object ranges do not make sense when not walking revisions");
+ revs->no_walk = 0;
if (revs->reflog_info && obj->type == OBJ_COMMIT &&
add_reflog_for_walk(revs->reflog_info,
(struct commit *)obj, name))
if (!tag->tagged)
die("bad tag");
object = parse_object(tag->tagged->sha1);
- if (!object)
+ if (!object) {
+ if (flags & UNINTERESTING)
+ return NULL;
die("bad object %s", sha1_to_hex(tag->tagged->sha1));
+ }
}
/*
mark_parents_uninteresting(commit);
revs->limited = 1;
}
+ if (revs->show_source && !commit->util)
+ commit->util = (void *) name;
return commit;
}
/*
- * Tree object? Either mark it uniniteresting, or add it
+ * Tree object? Either mark it uninteresting, or add it
* to the list of objects to look at later..
*/
if (object->type == OBJ_TREE) {
/*
* The goal is to get REV_TREE_NEW as the result only if the
- * diff consists of all '+' (and no other changes), and
- * REV_TREE_DIFFERENT otherwise (of course if the trees are
- * the same we want REV_TREE_SAME). That means that once we
- * get to REV_TREE_DIFFERENT, we do not have to look any further.
+ * diff consists of all '+' (and no other changes), REV_TREE_OLD
+ * if the whole diff is removal of old data, and otherwise
+ * REV_TREE_DIFFERENT (of course if the trees are the same we
+ * want REV_TREE_SAME).
+ * That means that once we get to REV_TREE_DIFFERENT, we do not
+ * have to look any further.
*/
static int tree_difference = REV_TREE_SAME;
const unsigned char *sha1,
const char *fullpath)
{
- int diff = REV_TREE_DIFFERENT;
+ int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD;
- /*
- * Is it an add of a new file? It means that the old tree
- * didn't have it at all, so we will turn "REV_TREE_SAME" ->
- * "REV_TREE_NEW", but leave any "REV_TREE_DIFFERENT" alone
- * (and if it already was "REV_TREE_NEW", we'll keep it
- * "REV_TREE_NEW" of course).
- */
- if (addremove == '+') {
- diff = tree_difference;
- if (diff != REV_TREE_SAME)
- return;
- diff = REV_TREE_NEW;
- }
- tree_difference = diff;
+ tree_difference |= diff;
if (tree_difference == REV_TREE_DIFFERENT)
DIFF_OPT_SET(options, HAS_CHANGES);
}
DIFF_OPT_SET(options, HAS_CHANGES);
}
-static int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2)
+static int rev_compare_tree(struct rev_info *revs, struct commit *parent, struct commit *commit)
{
+ struct tree *t1 = parent->tree;
+ struct tree *t2 = commit->tree;
+
if (!t1)
return REV_TREE_NEW;
if (!t2)
- return REV_TREE_DIFFERENT;
+ return REV_TREE_OLD;
+
+ if (revs->simplify_by_decoration) {
+ /*
+ * If we are simplifying by decoration, then the commit
+ * is worth showing if it has a tag pointing at it.
+ */
+ if (lookup_decoration(&name_decoration, &commit->object))
+ return REV_TREE_DIFFERENT;
+ /*
+ * A commit that is not pointed by a tag is uninteresting
+ * if we are not limited by path. This means that you will
+ * see the usual "commits that touch the paths" plus any
+ * tagged commit by specifying both --simplify-by-decoration
+ * and pathspec.
+ */
+ if (!revs->prune_data)
+ return REV_TREE_SAME;
+ }
+
tree_difference = REV_TREE_SAME;
DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES);
if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "",
return tree_difference;
}
-static int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1)
+static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
{
int retval;
void *tree;
unsigned long size;
struct tree_desc empty, real;
+ struct tree *t1 = commit->tree;
if (!t1)
return 0;
return;
if (!commit->parents) {
- if (rev_same_tree_as_empty(revs, commit->tree))
+ if (rev_same_tree_as_empty(revs, commit))
commit->object.flags |= TREESAME;
return;
}
die("cannot simplify commit %s (because of %s)",
sha1_to_hex(commit->object.sha1),
sha1_to_hex(p->object.sha1));
- switch (rev_compare_tree(revs, p->tree, commit->tree)) {
+ switch (rev_compare_tree(revs, p, commit)) {
case REV_TREE_SAME:
tree_same = 1;
if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) {
case REV_TREE_NEW:
if (revs->remove_empty_trees &&
- rev_same_tree_as_empty(revs, p->tree)) {
+ rev_same_tree_as_empty(revs, p)) {
/* We are adding all the specified
* paths from this parent, so the
* history beyond this parent is not
p->parents = NULL;
}
/* fallthrough */
+ case REV_TREE_OLD:
case REV_TREE_DIFFERENT:
tree_changed = 1;
pp = &parent->next;
while (parent) {
struct commit *p = parent->item;
parent = parent->next;
+ if (p)
+ p->object.flags |= UNINTERESTING;
if (parse_commit(p) < 0)
- return -1;
- p->object.flags |= UNINTERESTING;
+ continue;
if (p->parents)
mark_parents_uninteresting(p);
if (p->object.flags & SEEN)
if (parse_commit(p) < 0)
return -1;
+ if (revs->show_source && !p->util)
+ p->util = commit->util;
p->object.flags |= left_flag;
if (!(p->object.flags & SEEN)) {
p->object.flags |= SEEN;
insert_by_date_cached(p, list, cached_base, cache_ptr);
}
- if(revs->first_parent_only)
+ if (revs->first_parent_only)
break;
}
return 0;
right_count++;
}
+ if (!left_count || !right_count)
+ return;
+
left_first = left_count < right_count;
init_patch_ids(&ids);
if (revs->diffopt.nr_paths) {
revs->commit_format = CMIT_FMT_DEFAULT;
+ revs->grep_filter.status_only = 1;
+ revs->grep_filter.pattern_tail = &(revs->grep_filter.pattern_list);
+ revs->grep_filter.regflags = REG_NEWLINE;
+
diff_setup(&revs->diffopt);
if (prefix && !revs->diffopt.prefix) {
revs->diffopt.prefix = prefix;
return 0;
}
-void read_revisions_from_stdin(struct rev_info *revs)
+static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb, const char ***prune_data)
{
- char line[1000];
+ const char **prune = *prune_data;
+ int prune_nr;
+ int prune_alloc;
+
+ /* count existing ones */
+ if (!prune)
+ prune_nr = 0;
+ else
+ for (prune_nr = 0; prune[prune_nr]; prune_nr++)
+ ;
+ prune_alloc = prune_nr; /* not really, but we do not know */
+
+ while (strbuf_getwholeline(sb, stdin, '\n') != EOF) {
+ int len = sb->len;
+ if (len && sb->buf[len - 1] == '\n')
+ sb->buf[--len] = '\0';
+ ALLOC_GROW(prune, prune_nr+1, prune_alloc);
+ prune[prune_nr++] = xstrdup(sb->buf);
+ }
+ if (prune) {
+ ALLOC_GROW(prune, prune_nr+1, prune_alloc);
+ prune[prune_nr] = NULL;
+ }
+ *prune_data = prune;
+}
- while (fgets(line, sizeof(line), stdin) != NULL) {
- int len = strlen(line);
- if (len && line[len - 1] == '\n')
- line[--len] = '\0';
+static void read_revisions_from_stdin(struct rev_info *revs, const char ***prune)
+{
+ struct strbuf sb;
+ int seen_dashdash = 0;
+
+ strbuf_init(&sb, 1000);
+ while (strbuf_getwholeline(&sb, stdin, '\n') != EOF) {
+ int len = sb.len;
+ if (len && sb.buf[len - 1] == '\n')
+ sb.buf[--len] = '\0';
if (!len)
break;
- if (line[0] == '-')
+ if (sb.buf[0] == '-') {
+ if (len == 2 && sb.buf[1] == '-') {
+ seen_dashdash = 1;
+ break;
+ }
die("options not supported in --stdin mode");
- if (handle_revision_arg(line, revs, 0, 1))
- die("bad revision '%s'", line);
+ }
+ if (handle_revision_arg(sb.buf, revs, 0, 1))
+ die("bad revision '%s'", sb.buf);
}
+ if (seen_dashdash)
+ read_pathspec_from_stdin(revs, &sb, prune);
+ strbuf_release(&sb);
}
static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what)
{
- if (!revs->grep_filter) {
- struct grep_opt *opt = xcalloc(1, sizeof(*opt));
- opt->status_only = 1;
- opt->pattern_tail = &(opt->pattern_list);
- opt->regflags = REG_NEWLINE;
- revs->grep_filter = opt;
- }
- append_grep_pattern(revs->grep_filter, ptn,
- "command line", 0, what);
+ append_grep_pattern(&revs->grep_filter, ptn, "command line", 0, what);
}
-static void add_header_grep(struct rev_info *revs, const char *field, const char *pattern)
+static void add_header_grep(struct rev_info *revs, enum grep_header_field field, const char *pattern)
{
- char *pat;
- const char *prefix;
- int patlen, fldlen;
-
- fldlen = strlen(field);
- patlen = strlen(pattern);
- pat = xmalloc(patlen + fldlen + 10);
- prefix = ".*";
- if (*pattern == '^') {
- prefix = "";
- pattern++;
- }
- sprintf(pat, "^%s %s%s", field, prefix, pattern);
- add_grep(revs, pat, GREP_PATTERN_HEAD);
+ append_header_grep_pattern(&revs->grep_filter, field, pattern);
}
static void add_message_grep(struct rev_info *revs, const char *pattern)
add_grep(revs, pattern, GREP_PATTERN_BODY);
}
-static void add_ignore_packed(struct rev_info *revs, const char *name)
-{
- int num = ++revs->num_ignore_packed;
-
- revs->ignore_packed = xrealloc(revs->ignore_packed,
- sizeof(const char **) * (num + 1));
- revs->ignore_packed[num-1] = name;
- revs->ignore_packed[num] = NULL;
-}
-
static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv,
int *unkc, const char **unkv)
{
if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
!strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
!strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
- !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk"))
+ !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") ||
+ !strcmp(arg, "--bisect"))
{
unkv[(*unkc)++] = arg;
return 1;
} else if (!strcmp(arg, "--topo-order")) {
revs->lifo = 1;
revs->topo_order = 1;
+ } else if (!strcmp(arg, "--simplify-merges")) {
+ revs->simplify_merges = 1;
+ revs->rewrite_parents = 1;
+ revs->simplify_history = 0;
+ revs->limited = 1;
+ } else if (!strcmp(arg, "--simplify-by-decoration")) {
+ revs->simplify_merges = 1;
+ revs->rewrite_parents = 1;
+ revs->simplify_history = 0;
+ revs->simplify_by_decoration = 1;
+ revs->limited = 1;
+ revs->prune = 1;
+ load_ref_decorations(DECORATE_SHORT_REFS);
} else if (!strcmp(arg, "--date-order")) {
revs->lifo = 0;
revs->topo_order = 1;
revs->show_all = 1;
} else if (!strcmp(arg, "--remove-empty")) {
revs->remove_empty_trees = 1;
+ } else if (!strcmp(arg, "--merges")) {
+ revs->merges_only = 1;
} else if (!strcmp(arg, "--no-merges")) {
revs->no_merges = 1;
} else if (!strcmp(arg, "--boundary")) {
revs->edge_hint = 1;
} else if (!strcmp(arg, "--unpacked")) {
revs->unpacked = 1;
- free(revs->ignore_packed);
- revs->ignore_packed = NULL;
- revs->num_ignore_packed = 0;
} else if (!prefixcmp(arg, "--unpacked=")) {
- revs->unpacked = 1;
- add_ignore_packed(revs, arg+11);
+ die("--unpacked=<packfile> no longer supported.");
} else if (!strcmp(arg, "-r")) {
revs->diff = 1;
DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
revs->verbose_header = 1;
} else if (!strcmp(arg, "--pretty")) {
revs->verbose_header = 1;
+ revs->pretty_given = 1;
get_commit_format(arg+8, revs);
- } else if (!prefixcmp(arg, "--pretty=")) {
+ } else if (!prefixcmp(arg, "--pretty=") || !prefixcmp(arg, "--format=")) {
revs->verbose_header = 1;
+ revs->pretty_given = 1;
get_commit_format(arg+9, revs);
+ } else if (!strcmp(arg, "--show-notes")) {
+ revs->show_notes = 1;
+ revs->show_notes_given = 1;
+ } else if (!strcmp(arg, "--no-notes")) {
+ revs->show_notes = 0;
+ revs->show_notes_given = 1;
+ } else if (!strcmp(arg, "--oneline")) {
+ revs->verbose_header = 1;
+ get_commit_format("oneline", revs);
+ revs->pretty_given = 1;
+ revs->abbrev_commit = 1;
} else if (!strcmp(arg, "--graph")) {
revs->topo_order = 1;
revs->rewrite_parents = 1;
revs->simplify_history = 0;
} else if (!strcmp(arg, "--relative-date")) {
revs->date_mode = DATE_RELATIVE;
+ revs->date_mode_explicit = 1;
} else if (!strncmp(arg, "--date=", 7)) {
revs->date_mode = parse_date_format(arg + 7);
+ revs->date_mode_explicit = 1;
} else if (!strcmp(arg, "--log-size")) {
revs->show_log_size = 1;
}
* Grepping the commit log
*/
else if (!prefixcmp(arg, "--author=")) {
- add_header_grep(revs, "author", arg+9);
+ add_header_grep(revs, GREP_HEADER_AUTHOR, arg+9);
} else if (!prefixcmp(arg, "--committer=")) {
- add_header_grep(revs, "committer", arg+12);
+ add_header_grep(revs, GREP_HEADER_COMMITTER, arg+12);
} else if (!prefixcmp(arg, "--grep=")) {
add_message_grep(revs, arg+7);
} else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
- if (revs->grep_filter)
- revs->grep_filter->regflags |= REG_EXTENDED;
+ revs->grep_filter.regflags |= REG_EXTENDED;
} else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
- if (revs->grep_filter)
- revs->grep_filter->regflags |= REG_ICASE;
+ revs->grep_filter.regflags |= REG_ICASE;
} else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
- if (revs->grep_filter)
- revs->grep_filter->fixed = 1;
+ revs->grep_filter.fixed = 1;
} else if (!strcmp(arg, "--all-match")) {
- if (revs->grep_filter)
- revs->grep_filter->all_match = 1;
+ revs->grep_filter.all_match = 1;
} else if (!prefixcmp(arg, "--encoding=")) {
arg += 11;
if (strcmp(arg, "none"))
ctx->argc -= n;
}
+static int for_each_bad_bisect_ref(each_ref_fn fn, void *cb_data)
+{
+ return for_each_ref_in("refs/bisect/bad", fn, cb_data);
+}
+
+static int for_each_good_bisect_ref(each_ref_fn fn, void *cb_data)
+{
+ return for_each_ref_in("refs/bisect/good", fn, cb_data);
+}
+
+static void append_prune_data(const char ***prune_data, const char **av)
+{
+ const char **prune = *prune_data;
+ int prune_nr;
+ int prune_alloc;
+
+ if (!prune) {
+ *prune_data = av;
+ return;
+ }
+
+ /* count existing ones */
+ for (prune_nr = 0; prune[prune_nr]; prune_nr++)
+ ;
+ prune_alloc = prune_nr; /* not really, but we do not know */
+
+ while (*av) {
+ ALLOC_GROW(prune, prune_nr+1, prune_alloc);
+ prune[prune_nr++] = *av;
+ av++;
+ }
+ if (prune) {
+ ALLOC_GROW(prune, prune_nr+1, prune_alloc);
+ prune[prune_nr] = NULL;
+ }
+ *prune_data = prune;
+}
+
/*
* Parse revision information, filling in the "rev_info" structure,
* and removing the used arguments from the argument list.
*/
int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def)
{
- int i, flags, left, seen_dashdash;
+ int i, flags, left, seen_dashdash, read_from_stdin;
+ const char **prune_data = NULL;
/* First, search for "--" */
seen_dashdash = 0;
argv[i] = NULL;
argc = i;
if (argv[i + 1])
- revs->prune_data = get_pathspec(revs->prefix, argv + i + 1);
+ prune_data = argv + i + 1;
seen_dashdash = 1;
break;
}
/* Second, deal with arguments and options */
flags = 0;
+ read_from_stdin = 0;
for (left = i = 1; i < argc; i++) {
const char *arg = argv[i];
if (*arg == '-') {
if (!strcmp(arg, "--all")) {
handle_refs(revs, flags, for_each_ref);
+ handle_refs(revs, flags, head_ref);
continue;
}
if (!strcmp(arg, "--branches")) {
handle_refs(revs, flags, for_each_branch_ref);
continue;
}
+ if (!strcmp(arg, "--bisect")) {
+ handle_refs(revs, flags, for_each_bad_bisect_ref);
+ handle_refs(revs, flags ^ UNINTERESTING, for_each_good_bisect_ref);
+ revs->bisect = 1;
+ continue;
+ }
if (!strcmp(arg, "--tags")) {
handle_refs(revs, flags, for_each_tag_ref);
continue;
revs->no_walk = 0;
continue;
}
+ if (!strcmp(arg, "--stdin")) {
+ if (revs->disable_stdin) {
+ argv[left++] = arg;
+ continue;
+ }
+ if (read_from_stdin++)
+ die("--stdin given twice?");
+ read_revisions_from_stdin(revs, &prune_data);
+ continue;
+ }
opts = handle_revision_opt(revs, argc - i, argv + i, &left, argv);
if (opts > 0) {
for (j = i; j < argc; j++)
verify_filename(revs->prefix, argv[j]);
- revs->prune_data = get_pathspec(revs->prefix,
- argv + i);
+ append_prune_data(&prune_data, argv + i);
break;
}
}
+ if (prune_data)
+ revs->prune_data = get_pathspec(revs->prefix, prune_data);
+
if (revs->def == NULL)
revs->def = def;
if (revs->show_merge)
if (diff_setup_done(&revs->diffopt) < 0)
die("diff_setup_done failed");
- if (revs->grep_filter) {
- compile_grep_patterns(revs->grep_filter);
- }
+ compile_grep_patterns(&revs->grep_filter);
if (revs->reverse && revs->reflog_info)
die("cannot combine --reverse with --walk-reflogs");
l->next = add_decoration(&revs->children, &parent->object, l);
}
+static int remove_duplicate_parents(struct commit *commit)
+{
+ struct commit_list **pp, *p;
+ int surviving_parents;
+
+ /* Examine existing parents while marking ones we have seen... */
+ pp = &commit->parents;
+ while ((p = *pp) != NULL) {
+ struct commit *parent = p->item;
+ if (parent->object.flags & TMP_MARK) {
+ *pp = p->next;
+ continue;
+ }
+ parent->object.flags |= TMP_MARK;
+ pp = &p->next;
+ }
+ /* count them while clearing the temporary mark */
+ surviving_parents = 0;
+ for (p = commit->parents; p; p = p->next) {
+ p->item->object.flags &= ~TMP_MARK;
+ surviving_parents++;
+ }
+ return surviving_parents;
+}
+
+struct merge_simplify_state {
+ struct commit *simplified;
+};
+
+static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs, struct commit *commit)
+{
+ struct merge_simplify_state *st;
+
+ st = lookup_decoration(&revs->merge_simplification, &commit->object);
+ if (!st) {
+ st = xcalloc(1, sizeof(*st));
+ add_decoration(&revs->merge_simplification, &commit->object, st);
+ }
+ return st;
+}
+
+static struct commit_list **simplify_one(struct rev_info *revs, struct commit *commit, struct commit_list **tail)
+{
+ struct commit_list *p;
+ struct merge_simplify_state *st, *pst;
+ int cnt;
+
+ st = locate_simplify_state(revs, commit);
+
+ /*
+ * Have we handled this one?
+ */
+ if (st->simplified)
+ return tail;
+
+ /*
+ * An UNINTERESTING commit simplifies to itself, so does a
+ * root commit. We do not rewrite parents of such commit
+ * anyway.
+ */
+ if ((commit->object.flags & UNINTERESTING) || !commit->parents) {
+ st->simplified = commit;
+ return tail;
+ }
+
+ /*
+ * Do we know what commit all of our parents should be rewritten to?
+ * Otherwise we are not ready to rewrite this one yet.
+ */
+ for (cnt = 0, p = commit->parents; p; p = p->next) {
+ pst = locate_simplify_state(revs, p->item);
+ if (!pst->simplified) {
+ tail = &commit_list_insert(p->item, tail)->next;
+ cnt++;
+ }
+ }
+ if (cnt) {
+ tail = &commit_list_insert(commit, tail)->next;
+ return tail;
+ }
+
+ /*
+ * Rewrite our list of parents.
+ */
+ for (p = commit->parents; p; p = p->next) {
+ pst = locate_simplify_state(revs, p->item);
+ p->item = pst->simplified;
+ }
+ cnt = remove_duplicate_parents(commit);
+
+ /*
+ * It is possible that we are a merge and one side branch
+ * does not have any commit that touches the given paths;
+ * in such a case, the immediate parents will be rewritten
+ * to different commits.
+ *
+ * o----X X: the commit we are looking at;
+ * / / o: a commit that touches the paths;
+ * ---o----'
+ *
+ * Further reduce the parents by removing redundant parents.
+ */
+ if (1 < cnt) {
+ struct commit_list *h = reduce_heads(commit->parents);
+ cnt = commit_list_count(h);
+ free_commit_list(commit->parents);
+ commit->parents = h;
+ }
+
+ /*
+ * A commit simplifies to itself if it is a root, if it is
+ * UNINTERESTING, if it touches the given paths, or if it is a
+ * merge and its parents simplifies to more than one commits
+ * (the first two cases are already handled at the beginning of
+ * this function).
+ *
+ * Otherwise, it simplifies to what its sole parent simplifies to.
+ */
+ if (!cnt ||
+ (commit->object.flags & UNINTERESTING) ||
+ !(commit->object.flags & TREESAME) ||
+ (1 < cnt))
+ st->simplified = commit;
+ else {
+ pst = locate_simplify_state(revs, commit->parents->item);
+ st->simplified = pst->simplified;
+ }
+ return tail;
+}
+
+static void simplify_merges(struct rev_info *revs)
+{
+ struct commit_list *list;
+ struct commit_list *yet_to_do, **tail;
+
+ if (!revs->topo_order)
+ sort_in_topological_order(&revs->commits, revs->lifo);
+ if (!revs->prune)
+ return;
+
+ /* feed the list reversed */
+ yet_to_do = NULL;
+ for (list = revs->commits; list; list = list->next)
+ commit_list_insert(list->item, &yet_to_do);
+ while (yet_to_do) {
+ list = yet_to_do;
+ yet_to_do = NULL;
+ tail = &yet_to_do;
+ while (list) {
+ struct commit *commit = list->item;
+ struct commit_list *next = list->next;
+ free(list);
+ list = next;
+ tail = simplify_one(revs, commit, tail);
+ }
+ }
+
+ /* clean up the result, removing the simplified ones */
+ list = revs->commits;
+ revs->commits = NULL;
+ tail = &revs->commits;
+ while (list) {
+ struct commit *commit = list->item;
+ struct commit_list *next = list->next;
+ struct merge_simplify_state *st;
+ free(list);
+ list = next;
+ st = locate_simplify_state(revs, commit);
+ if (st->simplified == commit)
+ tail = &commit_list_insert(commit, tail)->next;
+ }
+}
+
static void set_children(struct rev_info *revs)
{
struct commit_list *l;
return -1;
if (revs->topo_order)
sort_in_topological_order(&revs->commits, revs->lifo);
+ if (revs->simplify_merges)
+ simplify_merges(revs);
if (revs->children.name)
set_children(revs);
return 0;
}
}
-static void remove_duplicate_parents(struct commit *commit)
-{
- struct commit_list **pp, *p;
-
- /* Examine existing parents while marking ones we have seen... */
- pp = &commit->parents;
- while ((p = *pp) != NULL) {
- struct commit *parent = p->item;
- if (parent->object.flags & TMP_MARK) {
- *pp = p->next;
- continue;
- }
- parent->object.flags |= TMP_MARK;
- pp = &p->next;
- }
- /* ... and clear the temporary mark */
- for (p = commit->parents; p; p = p->next)
- p->item->object.flags &= ~TMP_MARK;
-}
-
static int rewrite_parents(struct rev_info *revs, struct commit *commit)
{
struct commit_list **pp = &commit->parents;
static int commit_match(struct commit *commit, struct rev_info *opt)
{
- if (!opt->grep_filter)
+ if (!opt->grep_filter.pattern_list)
return 1;
- return grep_buffer(opt->grep_filter,
+ return grep_buffer(&opt->grep_filter,
NULL, /* we say nothing, not even filename */
commit->buffer, strlen(commit->buffer));
}
return (revs->rewrite_parents || revs->children.name);
}
-enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
+enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit)
{
if (commit->object.flags & SHOWN)
return commit_ignore;
- if (revs->unpacked && has_sha1_pack(commit->object.sha1, revs->ignore_packed))
+ if (revs->unpacked && has_sha1_pack(commit->object.sha1))
return commit_ignore;
if (revs->show_all)
return commit_show;
return commit_ignore;
if (revs->no_merges && commit->parents && commit->parents->next)
return commit_ignore;
+ if (revs->merges_only && !(commit->parents && commit->parents->next))
+ return commit_ignore;
if (!commit_match(commit, revs))
return commit_ignore;
if (revs->prune && revs->dense) {
if (!commit->parents || !commit->parents->next)
return commit_ignore;
}
- if (want_ancestry(revs) && rewrite_parents(revs, commit) < 0)
- return commit_error;
}
return commit_show;
}
+enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
+{
+ enum commit_action action = get_commit_action(revs, commit);
+
+ if (action == commit_show &&
+ !revs->show_all &&
+ revs->prune && revs->dense && want_ancestry(revs)) {
+ if (rewrite_parents(revs, commit) < 0)
+ return commit_error;
+ }
+ return action;
+}
+
static struct commit *get_revision_1(struct rev_info *revs)
{
if (!revs->commits)
(commit->date < revs->max_age))
continue;
if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0)
- return NULL;
+ die("Failed to traverse parents of commit %s",
+ sha1_to_hex(commit->object.sha1));
}
switch (simplify_commit(revs, commit)) {
case commit_ignore:
continue;
case commit_error:
- return NULL;
+ die("Failed to simplify parents of commit %s",
+ sha1_to_hex(commit->object.sha1));
default:
return commit;
}
return c;
}
- if (revs->reverse) {
- int limit = -1;
-
- if (0 <= revs->max_count) {
- limit = revs->max_count;
- if (0 < revs->skip_count)
- limit += revs->skip_count;
- }
- l = NULL;
- while ((c = get_revision_1(revs))) {
- commit_list_insert(c, &l);
- if ((0 < limit) && !--limit)
- break;
- }
- revs->commits = l;
- revs->reverse = 0;
- revs->max_count = -1;
- c = NULL;
- }
-
/*
* Now pick up what they want to give us
*/
struct commit *get_revision(struct rev_info *revs)
{
- struct commit *c = get_revision_internal(revs);
+ struct commit *c;
+ struct commit_list *reversed;
+
+ if (revs->reverse) {
+ reversed = NULL;
+ while ((c = get_revision_internal(revs))) {
+ commit_list_insert(c, &reversed);
+ }
+ revs->commits = reversed;
+ revs->reverse = 0;
+ revs->reverse_output_stage = 1;
+ }
+
+ if (revs->reverse_output_stage)
+ return pop_commit(&revs->commits);
+
+ c = get_revision_internal(revs);
if (c && revs->graph)
graph_update(revs->graph, c);
return c;